Home / 406,945,167.80-610,417,751.70-391,072,796.60

Finding the Fourth Proportional to 406,945,167.80, 610,417,751.70 and 391,072,796.60

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Solution

The fourth proportional to 406,945,167.80, 610,417,751.70 and 391,072,796.60 is: 586,609,194.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,945,167.80 : 610,417,751.70 = 391,072,796.60 : x
  2. Step 2: Convert to fraction form
    406,945,167.80/610,417,751.70 = 391,072,796.60/x
  3. Step 3: Cross multiply
    406,945,167.80x = 610,417,751.70 × 391,072,796.60
  4. Step 4: Simplify right side
    406,945,167.80x = 238,717,777,251,603,424
  5. Step 5: Solve for x
    x = 238,717,777,251,603,424/406,945,167.80
  6. Step 6: Final answer
    x = 586,609,194.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.